US Firearms was a company active in the early 2000's. I'm not sure when they got started, maybe in the 1990's, but they only lasted a few years. They operated out of the actual original Colt factory, "under the Blue Dome." They made excellent single action cartridge revolvers which were clones of the old Colts. I have a couple of them and they are nice. A lot of competitive shooters liked them better than Colts, and they were definitely better finished than the Italian revolvers being made at that time. I spoke with their rep at one of the SHOT Shows and also at the first SASS convention. They had plans to make percussion revolvers, and even went so far as to publish a little period-looking manual for the cap & ballers. Oddly, they enclosed one of those percussion revolver books with a .38 Special Model P that I bought from them once. However, I think they just took on too much. The Omni revolver, for one thing, and I think a semi-auto, then a weird .22, and they had plans for a Merwin & Hulbert and an 1875 Remington. In any event, I think they lost their focus, and then they lost their shirt. Another one gone under.
They made some good guns. If they had just stuck with the Colts, and maybe added a couple of cap & ball pistols and possibly an open top, people would have bought every one. As it is, we have the Italian guns and the competition between the Italian builders seems to be keeping the quality up.
"It ain't like it used to be, but it'll do."